7542402643503 has 24 divisors (see below), whose sum is σ = 13408715812128. Its totient is φ = 3978410185152.

The previous prime is 7542402643471. The next prime is 7542402643507. The reversal of 7542402643503 is 3053462042457.

7542402643503 is a `hidden beast` number, since 7 + 5 + 42 + 40 + 2 + 64 + 3 + 503 = 666.

It is not a de Polignac number, because 7542402643503 - 2⁵ = 7542402643471 is a prime.

It is a super-2 number, since 2×7542402643503² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7542402643507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4604640600 + ... + 4604642237.

It is an arithmetic number, because the mean of its divisors is an integer number (558696492172).

Almost surely, 2^{7542402643503} is an apocalyptic number.

7542402643503 is a deficient number, since it is larger than the sum of its proper divisors (5866313168625).

7542402643503 is a wasteful number, since it uses less digits than its factorization.

7542402643503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209282863 (or 9209282860 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 45.

The spelling of 7542402643503 in words is "seven trillion, five hundred forty-two billion, four hundred two million, six hundred forty-three thousand, five hundred three".